GZIPFilter可以用gzip的方式压缩HTTP Response的内容，从而在Server端加快了响应回复的速度（gzip压缩过程需耗用CPU资源，却大幅减轻了网卡的处理负担），在Client端缩短了页面刷新时间，在网络内减少了数据流量。另一方面，因为采用的Filter的方式，无需改动应用现有的代码就可引入该功能。-GZIPFilter way can be compressed with gzip content of HTTP Response to the Server side to speed up the response speed of response (gzip compression process consumes CPU resources, but significantly reduce the processing burden on the card), in the Client side to shorten the time to refresh the page in the network reduces the data traffic. On the other hand, because the use of the Filter approach, without changing existing application code can be introduced into the function.